#Login as root sudo su #create jdk directory mkdir /opt/jdk #uncompress, change to your file name tar -zxf jdk-8u5-linux-x64.tar.gz -C /opt/jdk #check if files are there #ls /opt/jdk #update alternatives so the command java point to the new jdk update-alternatives –install /usr/bin/java java /opt/jdk/jdk1.8.0_05/bin/java 100 #update alternatives so the command javac point to the new … Continue reading Install JDK 8 from tar.gz Ubuntu